公开(公告)号：US11917315B2

公开(公告)日：2024-02-27

申请号：US18100392

申请日：2023-01-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yunjae Suh ,  Junseok Kim ,  Hyunsurk Ryu ,  Keun Joo Park ,  Masamichi Ito

IPC: H04N25/75 ,  H04N25/77 ,  H04N25/47

CPC classification number: H04N25/75 ,  H04N25/47 ,  H04N25/77

Abstract: An image sensor includes a CIS (CMOS image sensor) pixel, a DVS (dynamic vision sensor) pixel, and an image signal processor. The CIS pixel includes a photoelectric conversion device generating charges corresponding to an incident light and a readout circuit generating an output voltage corresponding to the generated charges. The DVS pixel detects a change in an intensity of the incident light based on the generated charges to output an event signal and does not include a separate photoelectric conversion device. The image signal processor allows the photoelectric conversion device to be connected to the readout circuit or the DVS pixel.

公开(公告)号：US11765486B2

公开(公告)日：2023-09-19

申请号：US17494243

申请日：2021-10-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seungnam Choi ,  Jongwoo Bong ,  Junseok Kim ,  Yunjae Suh

IPC: H04N25/771

CPC classification number: H04N25/771

Abstract: A vision sensor including a plurality of pixels configured to sense intensity of incident light, and to output request signals representing an occurrence status of an event; and an event detection circuit configured to generate event data including information about a pixel at which the event occurs, based on the request signals, wherein each pixel of the plurality of pixels includes: a photoelectric conversion device configured to generate a current corresponding to the incident light; a current-to-voltage converter configured to generate a voltage corresponding to the current; an amplifier configured to amplify a variation amount of the generated voltage to generate an output voltage; an event storage configured to generate an event signal corresponding to a comparison between the output voltage and a threshold voltage, and to hold the event signal using cross-coupled transistors; and an output logic configured to output a request signal based on the event signal.

公开(公告)号：US11140349B2

公开(公告)日：2021-10-05

申请号：US16552299

申请日：2019-08-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yunjae Suh ,  Junseok Kim ,  Hyunsurk Ryu ,  Keun Joo Park ,  Masamichi Ito

IPC: H04N5/378 ,  H04N5/3745

Abstract: An image sensor includes a CIS (CMOS image sensor) pixel, a DVS (dynamic vision sensor) pixel, and an image signal processor. The CIS pixel includes a photoelectric conversion device generating charges corresponding to an incident light and a readout circuit generating an output voltage corresponding to the generated charges. The DVS pixel detects a change in an intensity of the incident light based on the generated charges to output an event signal and does not include a separate photoelectric conversion device. The image signal processor allows the photoelectric conversion device to be connected to the readout circuit or the DVS pixel.

公开(公告)号：US11122224B2

公开(公告)日：2021-09-14

申请号：US16839812

申请日：2020-04-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yunjae Suh ,  Sung Ho Kim ,  Junseok Kim ,  Hyunsurk Ryu

IPC: H04N5/361 ,  G01J1/44 ,  H01L27/146 ,  H04N5/374 ,  H04N5/355

Abstract: An event-based sensor includes a dummy pixel that generates a dark current, a current mirror that generates a mirrored current using the dark current, and a sensing pixel that generates a sense current based on an intensity of incident light, and outputs an activation signal, indicating whether a variation in the incident light is sensed, based on a light current that is obtained by subtracting the mirrored current from the sense current.

公开(公告)号：US10337914B2

公开(公告)日：2019-07-02

申请号：US14827986

申请日：2015-08-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sung Ho Kim ,  Junseok Kim ,  Jun Haeng Lee ,  Eric Hyunsurk Ryu ,  Yunjae Suh

IPC: G01J1/02 ,  G01J1/04 ,  G01J1/42 ,  G01J1/44 ,  G06F3/01 ,  G06F3/03 ,  G06F1/3231

Abstract: A sensor configured for sensing motion information, illumination information, and proximity information is provided. The sensor includes a light sensing module configured to sense a change in an intensity of light, a filtering module configured to filter light incident to the light sensing module by using a plurality of filters, and a processor configured to process information associated with an intensity of light passing through the filters.

公开(公告)号：US09739660B2

公开(公告)日：2017-08-22

申请号：US14802401

申请日：2015-07-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yunjae Suh ,  Sung Ho Kim ,  Junseok Kim ,  Eric Hyunsurk Ryu

IPC: G01J1/44 ,  H03F1/30 ,  H03F3/08

CPC classification number: G01J1/44 ,  G01J2001/446 ,  H03F1/303 ,  H03F3/082 ,  H03F2200/129 ,  H03F2200/375 ,  H03F2200/555

Abstract: A circuit configured to amplify a signal from which an offset is cancelled includes an amplifier including an input stage configured to receive an input signal, the amplifier configured to amplify the input signal and output the amplified signal, and a switch including a transistor configured to reset the amplifier in response to a reset signal, the transistor including a body node connecting the transistor to the circuit, the transistor being configured to form a current path between the body node of the transistor and the input stage of the amplifier.